Chief Master Sgt. Trey Walker, middle, 480th Intelligence, Reconnaissance and Surveillance Wing command chief, tours the U-2 Dragon Lady’s Optical Bar Camera Film Processing Center at Beale Air Force Base, Calif., Nov. 6, 2019. The tour was part of Walker's visit to meet Airmen and communicate the future of the 548th ISR Group mission. (U.S. Air Force photo by Senior Airman Valentina Viglianco)